--- In Indoor_Construction_at_yahoogroups.com, Tapio Linkosalo <tapio.linkosalo@...> wrote:
>
> On 16.9.2011 11:39, Segundo Zarate wrote:
> > The density is the same. But .7 is heavier than .5 by 40 per cent.
> >
> >
>
> WHAT is the density?
Well, if you're good friends with either Alan Cohen or TG, you might ask one to weigh and measure one of their big rolls of OS. Consider the cylinder to be solid mass, use Pi to calculate volume, and subtract the center spool volume. After that, they may ask what I also wonder--why?
Received on Sun Sep 18 2011 - 11:59:28 CEST
This archive was generated by Yannick on Sat Dec 14 2019 - 19:13:46 CET